[1] Nottingham Univ Hosp NHS Trust, NIHR Nottingham Biomed Res Ctr, Nottingham, England
[2] Univ Nottingham, Sch Med, Nottingham, England
[3] Univ Nottingham, Nottingham Digest Dis Ctr, Nottingham, England
[4] Univ Sheffield, Dept Surg, Sheffield, S Yorkshire, England
[5] Univ Verona, Div Gastroenterol, AOUI Verona, Verona, Italy
[6] Univ N Carolina, Ctr Funct GI & Motil Disorders, Chapel Hill, NC 27515 USA
[7] Kings Coll London, Dept Nutr Sci, London, England
[8] Univ Southampton NHS Trust, Southampton, Hants, England
[9] UCL, GI Physiol Unit, London, England
[10] UCLH, London, England
[11] Univ Hosp Zurich, Div Gastroenterol & Hepatol, Zurich, Switzerland
[12] Klin Arlesheim, Ctr Integrat Gastroenterol, Lab & Clin Motil Disorders & Funct Gastrointestin, Digest Funct Basel, Arlesheim, Switzerland
[13] Univ Leeds, Leeds Inst Med Res St Jamess, Leeds, W Yorkshire, England
[14] St James Univ Hosp, Leeds Gastroenterol Inst, Leeds, W Yorkshire, England
[15] Barts Hlth NHS Trust, Dept Colorectal Surg, London, England
[16] Univ Padua, Reg Hosp Treviso, Tertiary Referral Pelv Floor & Incontinence Ctr, Padua, Italy
[17] Univ Hosp North Durham, Old Trust Headquarters, Durham Bowel Dysfunct Serv, Durham, England
[18] Queen Mary Univ London, Barts & London Sch Med & Dent, Ctr Neurosci Surg & Trauma, Natl Bowel Res Ctr,Blizard Inst, London, England
[19] Queen Mary Univ London, Barts & London Sch Med & Dent, Ctr Neurosci Surg & Trauma, Blizard Inst,GI Physiol Unit, London, England
[20] St Vincents Univ Hosp, Ctr Colorectal Dis, Dublin, Ireland
[21] Houston Methodist Hosp, Lynda K & David M Ctr Gastrointestinal Disorder, Houston, TX 77030 USA
[22] Weill Cornell Med Coll, Houston, TX USA
[23] Univ Gothenburg, Sahlgrenska Acad, Inst Med, Dept Internal Med & Clin Nutr, Gothenburg, Sweden
[24] Guys & St Thomas NHS Fdn Trust, London, England